40543329 has 4 divisors (see below), whose sum is σ = 54057776. Its totient is φ = 27028884.

The previous prime is 40543297. The next prime is 40543331. The reversal of 40543329 is 92334504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40543329 - 2⁵ = 40543297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40543296 and 40543305.

It is not an unprimeable number, because it can be changed into a prime (40543229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6757219 + ... + 6757224.

It is an arithmetic number, because the mean of its divisors is an integer number (13514444).

Almost surely, 2^40543329 is an apocalyptic number.

It is an amenable number.

40543329 is a deficient number, since it is larger than the sum of its proper divisors (13514447).

40543329 is a wasteful number, since it uses less digits than its factorization.

40543329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13514446.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40543329 is about 6367.3643684024. The cubic root of 40543329 is about 343.5366965831.

It can be divided in two parts, 405 and 43329, that added together give a palindrome (43734).

The spelling of 40543329 in words is "forty million, five hundred forty-three thousand, three hundred twenty-nine".